class A:
    def func01(self):
        print('A func01')
    def func04(self):
        print('A func04')
class B:
    def func02(self):
        print('B func02')
    def func04(self):
        print('B func04')
#
class C(A, B):
    def func03(self):
        print('C func03')
c = C()
c.func03()
c.func01()
c.func02()
c.func04()

